- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 21/338 - Field-effect transistors with a Schottky gate
Patent holdings for IPC class H01L 21/338
Total number of patents in this class: 1436
10-year publication summary
|
93
|
92
|
71
|
57
|
44
|
61
|
61
|
54
|
74
|
24
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Panasonic Corporation | 20786 |
73 |
| Sharp Kabushiki Kaisha | 18957 |
69 |
| Mitsubishi Electric Corporation | 43934 |
67 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 36809 |
57 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
57 |
| Rohm Co., Ltd. | 5843 |
51 |
| Sumitomo Chemical Company, Limited | 8808 |
50 |
| Sumitomo Electric Industries, Ltd. | 14131 |
45 |
| Fujitsu Limited | 19265 |
43 |
| NEC Corporation | 32703 |
33 |
| Denso Corporation | 23338 |
33 |
| Nippon Telegraph and Telephone Corporation | 14195 |
31 |
| NGK Insulators, Ltd. | 4589 |
28 |
| Sony Semiconductor Solutions Corporation | 8770 |
26 |
| Samsung Electronics Co., Ltd. | 131630 |
24 |
| International Business Machines Corporation | 60644 |
23 |
| Flosfia Inc. | 210 |
23 |
| Cree, Inc. | 1157 |
22 |
| GLOBALFOUNDRIES U.S. Inc. | 6459 |
22 |
| Sanken Electric Co., Ltd. | 484 |
19 |
| Other owners | 640 |